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Throws exception when trying to open any dialog If the "MaterialConfiguration" provided in "Material.Init()" using XF-Material-Library

I'm using XF-Material-Library in my Xamarin.forms, so When I tried to change the default theme of the library by providing an object of type MaterialConfiguration in the XF.Material.Forms.Material.Init() method, it keeps throwing exception when trying to open any dialog, even the dialog of the MaterialTextField (with InputType="Choice" and choices list) which is auto-opens by the library.
here is exception message:
Xamarin.Forms.Xaml.XamlParseException: Position 22:32. StaticResource not found for key Material.Dialog.Width
here is the full exception:
{Xamarin.Forms.Xaml.XamlParseException: Position 22:32. StaticResource not found for key Material.Dialog.Width at Xamarin.Forms.Xaml.StaticResourceExtension.ProvideValue (System.IServiceProvider serviceProvider) [0x0008f] in D:\a\1\s\Xamarin.Forms.Xaml\MarkupExtensions\StaticResourceExtension.cs:27 at XF.Material.Forms.UI.Dialogs.MaterialSimpleDialog.InitializeComponent () [0x00055] in C:\Users\mhvdi\Documents\OpenSource\XF-Material-Library\XF.Material\obj\Release\monoandroid10.0\UI\Dialogs\MaterialSimpleDialog.xaml.g.cs:38 at XF.Material.Forms.UI.Dialogs.MaterialSimpleDialog..ctor (XF.Material.Forms.UI.Dialogs.Configurations.MaterialSimpleDialogConfiguration configuration) [0x00006] in C:\Users\mhvdi\Documents\OpenSource\XF-Material-Library\XF.Material\UI\Dialogs\MaterialSimpleDialog.xaml.cs:21 at XF.Material.Forms.UI.Dialogs.MaterialSimpleDialog.ShowAsync (System.String title, System.Collections.Generic.IEnumerable`1[T] actions, XF.Material.Forms.UI.Dialogs.Configurations.MaterialSimpleDialogConfiguration configuration) [0x00014] in C:\Users\mhvdi\Documents\OpenSource\XF-Material-Library\XF.Material\UI\Dialogs\MaterialSimpleDialog.xaml.cs:31 at UiTest.ViewModels.AboutViewModel.<.ctor>b__17_2 () [0x0006c] in C:\Projects\UiTest\UiTest\UiTest\ViewModels\AboutViewModel.cs:83 }
And here is my code in App.xaml.cs :
XF.Material.Forms.Material.Init(this, new MaterialConfiguration
{
ColorConfiguration = new MaterialColorConfiguration
{
Background = Color.FromHex("#EAEAEA"),
Error = Color.FromHex("#B00020"),
OnBackground = Color.FromHex("#000000"),
OnError = Color.FromHex("#FFFFFF"),
OnPrimary = Color.FromHex("#FFFFFF"),
OnSecondary = Color.FromHex("#FFFFFF"),
OnSurface = Color.FromHex("#000000"),
Primary = Color.FromHex("#2196f3"),
PrimaryVariant = Color.FromHex("#03A9F4"),
Secondary = Color.FromHex("#29b6f6"),
SecondaryVariant = Color.FromHex("#0086c3"),
Surface = Color.FromHex("#FFFFFF")
}
});
Note: for now, I'm only working with Android.
I tried also to use App.xaml to add my configurations as the documentation described, but it didn't work for me, so I have tried to add my configurations in cs file.

copied from XF-Material_library issues on GitHub that solved by dm-CaT
I've faced the same issue. There is no possibility to avoid it when you're configuring Material from code. You have to configure it via resource dictionary. The steps are:
Add resources in app.xaml
<Application.Resources>
<mat:MaterialColorConfiguration x:Key="Material.Color"
Background="#e1e1e1"
Error="#B00020"
OnBackground="#2f3232"
OnError="#ffffff"
OnPrimary="#ffffff"
OnSecondary="#2f3232"
OnSurface="#2f3232"
Primary="#585b5b"
PrimaryVariant="#2f3232"
Secondary="#ef7d39"
SecondaryVariant="#ffae67"
Surface="#f5f5f5" />
<mat:MaterialConfiguration x:Key="Material.Configuration" ColorConfiguration="{StaticResource Material.Color}"/>
</Application.Resources>
Initialize Material in app.xaml.cs before InitializeComponent() call.
Apply theme from resources to Material after InitializeComponent() call.
Material.Init(this);
InitializeComponent();
Material.Use("Material.Configuration");

Adding custom DialogPreference to xml file

I've implemented this custom DialogPreference in C# with Xamarin however I'm having issues adding it to my xml file.
namespace Client.Android
{
public class TimePreference : DialogPreference
{
private int lastHour = 0;
private int lastMinute = 0;
private TimePicker picker = null;
public static int GetHour(string time)
{
string[] pieces = time.Split (':');
return Convert.ToInt32 (pieces [0]);
}
public static int GetMinute(string time)
{
string[] pieces = time.Split (':');
return Convert.ToInt32 (pieces [1]);
}
public TimePreference(Context context, IAttributeSet attSet) : base(context, attSet)
{
SetPositiveButtonText (Resource.String.time_preference_set);
SetNegativeButtonText (Resource.String.time_preference_cancel);
}
protected override View OnCreateDialogView ()
{
picker = new TimePicker (Context);
return picker;
}
protected override void OnBindDialogView (View view)
{
base.OnBindDialogView (view);
picker.CurrentHour = (Java.Lang.Integer) lastHour;
picker.CurrentMinute = (Java.Lang.Integer) lastMinute;
}
protected override void OnDialogClosed (bool positiveResult)
{
base.OnDialogClosed (positiveResult);
if (positiveResult) {
lastHour = (int) picker.CurrentHour;
lastMinute = (int) picker.CurrentMinute;
string time = lastHour + ":" + lastMinute;
if (CallChangeListener (time)) {
PersistString (time);
}
}
}
protected override Java.Lang.Object OnGetDefaultValue (TypedArray a, int index)
{
return a.GetString (index);
}
protected override void OnSetInitialValue (bool restorePersistedValue, Java.Lang.Object defaultValue)
{
string time = string.Empty;
if (restorePersistedValue) {
if (defaultValue == null) {
time = GetPersistedString ("00:00");
} else {
time = GetPersistedString (defaultValue.ToString ());
}
} else {
time = defaultValue.ToString ();
}
lastHour = GetHour (time);
lastMinute = GetMinute (time);
}
}
}
My projects name/default namespace is "Client.Android" and I've tried adding it to my xml file like so:
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >
<PreferenceCategory android:title="#string/pref_foo" >
...
<Client.Android.TimePreference
android:title="#string/pref_bar"
android:key="#string/prefkey_bar"
android:defaultValue="12:00" />
...
</PreferenceCategory>
</PreferenceScreen>
But I get the following exception on AddPreferencesFromResource(Resource.Xml.settings); of my OnCreate method:
Android.Views.InflateException: Binary XML file line #32: Error inflating class Client.Android.TimePreference
at Android.Runtime.JNIEnv.CallNonvirtualVoidMethod (intptr,intptr,intptr,Android.Runtime.JValue[]) [0x00084] in /Users/builder/data/lanes/monodroid-mlion-monodroid-4.12-series/7f0e3d3c/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.g.cs:895
at Android.Preferences.PreferenceActivity.AddPreferencesFromResource (int) [0x00070] in /Users/builder/data/lanes/monodroid-mlion-monodroid-4.12-series/7f0e3d3c/source/monodroid/src/Mono.Android/platforms/android-19/src/generated/Android.Preferences.PreferenceActivity.cs:729
at Client.Android.SettingsActivity.OnCreate (Android.OS.Bundle) [0x00015] in c:\pushtotalk\Client.Android\SettingsActivity.cs:45
at Android.App.Activity.n_OnCreate_Landroid_os_Bundle_ (intptr,intptr,intptr) [0x00011] in /Users/builder/data/lanes/monodroid-mlion-monodroid-4.12-series/7f0e3d3c/source/monodroid/src/Mono.Android/platforms/android-19/src/generated/Android.App.Activity.cs:2178
at at (wrapper dynamic-method) object.7c9f4d4d-9496-4803-b019-cd453beeee8b (intptr,intptr,intptr) <IL 0x00017, 0x00043>
at --- End of managed exception stack trace ---
at android.view.InflateException: Binary XML file line #32: Error inflating class Client.Android.TimePreference
at at android.preference.GenericInflater.createItemFromTag(GenericInflater.java:441)
at at android.preference.GenericInflater.rInflate(GenericInflater.java:481)
at at android.preference.GenericInflater.rInflate(GenericInflater.java:493)
at at android.preference.GenericInflater.inflate(GenericInflater.java:326)
at at android.preference.GenericInflater.inflate(GenericInflater.java:263)
at at android.preference.PreferenceManager.inflateFromResource(PreferenceManager.java:272)
at at android.preference.PreferenceActivity.addPreferencesFromResource(PreferenceActivity.java:1472)
at at client.android.SettingsActivity.n_onCreate(Native Method)
at at client.android.SettingsActivity.onCreate(SettingsActivity.java:32)
at at android.app.Activity.performCreate(Activity.java:5231)
at at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
at at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at at android.app.ActivityThread.access$800(ActivityThread.java:135)
at at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at at android.os.Handler.dispatchMessage(Handler.java:102)
at at android.os.Looper.loop(Looper.java:136)
at at android.app.ActivityThread.main(ActivityThread.java:5017)
at at java.lang.reflect.Method.invokeNative(Native Method)
at at java.lang.reflect.Method.invoke(Method.java:515)
at at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at at dalvik.system.NativeStart.main(Native Method)
at Caused by: java.lang.ClassNotFoundException: Didn't find class "Client.Android.TimePreference" on path: DexPathList[[zip file "/data/app/Client.Android-1.apk"],nativeLibraryDirectories=[/data/app-lib/Client.Android-1, /vendor/lib, /system/lib]]
at at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
at at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
at at android.preference.GenericInflater.createItem(GenericInflater.java:375)
at at android.preference.GenericInflater.createItemFromTag(GenericInflater.java:430)
at ... 22 more

These are the default attributes available (You can also view inherited attributes by expanding the Inherited XML Attributes block in the android docs for DialogPreference):
android:dialogIcon - The icon for the dialog.
android:dialogLayout - A layout to be used as the content View for the dialog.
android:dialogMessage - The message in the dialog.
android:dialogTitle - The title in the dialog.
android:negativeButtonText - The negative button text for the dialog.
android:positiveButtonText - The positive button text for the dialog.
So in order to use your own attributes you need to create your own Resource file where you define Stylables for your DialogPreference like:
Resource\Values\MyTimePreferenceAttrs.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="MyTimePreference">
<attr name="defaultValue" format="string"/>
</declare-styleable>
</resources>
Then in your AXML layout where you create your TimePreference view you need to add a namespace so that they can be resolved:
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:my="http://schemas.android.com/apk/res-auto" >
<PreferenceCategory android:title="#string/pref_foo" >
...
<Client.Android.TimePreference
my:defaultValue="12:00" />
...
</PreferenceCategory>
</PreferenceScreen>
Then in your constructor of TimePreference you can get the value with something like:
var ta = context.ObtainStyledAttributes(attrs, Resource.Styleable.MyTimePreference);
var defaultValue = ta.GetString(Resource.Styleable.MyTimePreference_defaultValue);
ta.Recycle();
You also might have a problem with using capitalized namespace in your XML layout. However the classname stays Capitalized, so:
<client.android.TimePreference
...

Binding to Objective C library (VFR Reader)

I'm new to MonoTouch development and I would like to embed some PDF Viewing functionality in my app. I have found several resources for doing that, however, I also see enough remarks about all the additional implementations to make it stable and fast.
I now see that there is a good ObjectiveC library which already implements a lot of functionality (CATiledLayer, multi-threading, page scrolling, thumb nails, device rotation ...): https://github.com/vfr/Reader
The last days, after reading the monotoch binding documentation, I'm trying to bind this in MonoTouch, but without success.
I'm able to export it to a library (.a) file and I've created a binding API.
//#interface ReaderDocument : NSObject <NSObject, NSCoding>
[BaseType (typeof (NSObject))]
interface ReaderDocument {
//- (id)initWithFilePath:(NSString *)fullFilePath password:(NSString *)phrase;
[Export("initWithFilePath:password")]
IntPtr Constructor (string path, string phrase);
//Properties
[Export("guid")]
string Guid { get;}
[Export("fileDate")]
NSDate FileDate { get;}
[Export("lastOpen")]
NSDate LastOpen { get;set;}
[Export("fileSize")]
NSNumber FileSize{ get;}
[Export("pageCount")]
NSNumber PageCount { get;}
[Export("pageNumber")]
NSNumber PageNumber { get;set;}
[Export("bookmarks")]
NSMutableIndexSet Bookmarks { get;}
[Export("fileName")]
string FileName { get;}
[Export("password")]
string Password { get;}
[Export("fileURL")]
NSUrl FileURL { get;}
//Methods
//+ (ReaderDocument *)withDocumentFilePath:(NSString *)filename password:(NSString *)phrase;
[Static, Export("withDocumentFilePath:password")]
ReaderDocument WithDocumentFilePath(string filename, string phrase);
//+ (ReaderDocument *)unarchiveFromFileName:(NSString *)filename password:(NSString *)phrase;
[Static, Export("unarchiveFromFileName:password")]
ReaderDocument UnarchiveFromFileName(string filename, string phrase);
//- (void)saveReaderDocument;
[Export("saveReaderDocument")]
void SaveReaderDocument();
//- (void)updateProperties;
[Export("updateProperties")]
void updateProperties();
}
I'm very unsure about following line btw:
//#interface ReaderDocument : NSObject <NSObject, NSCoding>
[BaseType (typeof (NSObject))]
interface ReaderDocument
Not sure if I have to do something with the ""?
I can now create following code in MonoTouch
ReaderDocument doc = ReaderDocument.withDocumentFilePath("Tamarin.pdf","");
or
ReaderDocument doc = new ReaderDocument("Tamarin.pdf","yrt");
Both are resulting in "unrecognized selector" error
2012-11-04 22:15:05.731 PFDTest1[4149:1507] +[ReaderDocument withDocumentFilePath:password]: unrecognized selector sent to class 0x2f7738
[ERROR] FATAL UNHANDLED EXCEPTION: MonoTouch.Foundation.MonoTouchException: Objective-C exception thrown. Name: NSInvalidArgumentException Reason: +[ReaderDocument withDocumentFilePath:password]: unrecognized selector sent to class 0x2f7738
at (wrapper managed-to-native) MonoTouch.ObjCRuntime.Messaging:IntPtr_objc_msgSend_IntPtr_IntPtr (intptr,intptr,intptr,intptr)
at VFRBinding4.ReaderDocument.withDocumentFilePath (System.String filename, System.String phrase) [0x00000] in <filename unknown>:0
at PFDTest1.AppDelegate.FinishedLaunching (MonoTouch.UIKit.UIApplication app, MonoTouch.Foundation.NSDictionary options) [0x00030] in /Users/matthiasvalcke/Projects/PFDTest1/PFDTest1/AppDelegate.cs:39
at (wrapper managed-to-native) MonoTouch.UIKit.UIApplication:UIApplicationMain (int,string[],intptr,intptr)
at MonoTouch.UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0004c] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIApplication.cs:38
at PFDTest1.Application.Main (System.String[] args) [0x00000] in /Users/matthiasvalcke/Projects/PFDTest1/PFDTest1/Main.cs:17
Any ideas?

There could be other issues but your bindings are wrong for the constructors, i.e.
//- (id)initWithFilePath:(NSString *)fullFilePath password:(NSString *)phrase;
[Export("initWithFilePath:password")]
void InitWithFilePath(string path, string password);
ObjectiveC init* selectors should be binded as C# constructors. E.g.
[Export("initWithFilePath:password")]
IntPtr Constructor (string path, string password);
and that should be what you use to create the instance, e.g.
ReaderDocument doc = new ReaderDocument ("sample.pdf", "");
// ...

I could be entirely wrong, but I think your selectors are wrong:
e.g. "withDocumentFilePath:password" should be "withDocumentFilePath:password:"

C# Storing multiple Items in multiple arrays for comparison

I have an application that reads File names and their equivalent Hash codes from an XML(After i have created the XML using the same application) and What i would like it to do is compare one XML (the files and their hash codes) to another XML(With possibly different files and hash codes). I'm trying to create a compare function so that i can compare the file names, first, between the two XMLs and then compare the Hash codes if the files exists in both XMLs.
(to help understand what im trying to achieve basically i have 2 listboxes next to each other, one for each of the xmls. Once i compare them i want both listboxes populated with all the file names but not the hashcodes and then to mark them in different colors depending if they are the same file, same file but different content or the file does not exist at all in the other XML.)
I'm struggling to find a way to store the file names and their hash codes.
Code(I am using a C++ Dll i created to do some of the work):
private String[] ProjOne()
{
//Intialize the functions in the DLL
DllTest.Funtions Functions = new DllTest.Funtions();
//Set the location where the XMLs can be found
String Directory = "C:\\Users\\brandonm\\Desktop\\Backup\\XML\\";
//Get and set the number of items in the directory
int NumFiles = Functions.GetNumFiles(Directory);
//Create a search string to be used to determine the fullpath name of the file
//selected from the combobox
String SelectedFile = comboBox1.SelectedItem.ToString();
String SearchString = "*" + SelectedFile + "*.XML";
//Get and set the TC that will be used to get the filenames and hashcodes
int SelectedTC = int.Parse(comboBox2.SelectedItem.ToString());
//Get and set an array containing a full path structure to the item selected from
//the combobox using the search string created earlier. Get files returns an array
//thus needs to be stored in an array
String[] FullPaths = new String[NumFiles];
FullPaths = System.IO.Directory.GetFiles("C:\\Users\\brandonm\\Desktop\\Backup\\XML", SearchString, System.IO.SearchOption.AllDirectories);
int number = FullPaths.GetLength(0);
// The number of items in the XML ie. Number of Filenames in a particular TC
int NumXMLItems = NumXMLItemsListOne();
// Initialize the array that will hold the Filenames and their equivalent Hashcodes
String[] FileNames = new String[NumXMLItems];
String[] HashCode = new String[NumXMLItems];
String[,] ProjectOne = new String[HashCode.Length, HashCode.Length];
//Itteration through the all the XMLs in the location to add the current items into their arrays
for (int x = 0; x < NumFiles; x++)
{
String FullPath = FullPaths[x];
XPathNavigator Root = new XPathDocument(FullPath).CreateNavigator();
foreach (XPathNavigator Cycle in Root.Select(String.Format(#"//TestCycle[#Number = '{0}']", SelectedTC)))
{
foreach (XPathNavigator Nav in Cycle.Select(#"Files/FileName/#File"))
{
int y = 0;
FileNames[y] = Nav.Value;
y = y + 1;
}
foreach (XPathNavigator Nav in Cycle.Select(#"Files/HashCode/#Code"))
{
int z = 0;
HashCode[z] = Nav.Value;
z = z + 1;
}
}
}
return FileNames;
}
XML:
<?xml version="1.0" encoding="utf-8"?>
<Projects>
<Project Name="tfasdtyf">
<TestCycle Number="2387468">
<Files>
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\DllTest.dll" />
<HashCode Code="0E-C5-03-AD-CC-21-62-49-D9-36-3F-C4-F1-17-BC-11" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.exe" />
<HashCode Code="60-46-A3-6F-82-E4-0A-00-2A-60-83-47-B2-16-F3-24" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.vshost.exe" />
<HashCode Code="76-7B-6F-37-0D-3A-F2-F4-32-D1-70-A5-75-3B-DE-95" />
</Files>
</TestCycle>
</Project>
<Project Name="tfasdtyf">
<TestCycle Number="23423">
<Files>
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\DllTest.dll" />
<HashCode Code="0E-C5-03-AD-CC-21-62-49-D9-36-3F-C4-F1-17-BC-11" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.exe" />
<HashCode Code="60-46-A3-6F-82-E4-0A-00-2A-60-83-47-B2-16-F3-24" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.vshost.exe" />
<HashCode Code="76-7B-6F-37-0D-3A-F2-F4-32-D1-70-A5-75-3B-DE-95" />
</Files>
</TestCycle>
</Project>
<Project Name="tfasdtyf">
<TestCycle Number="1112">
<Files>
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\DllTest.dll" />
<HashCode Code="0E-C5-03-AD-CC-21-62-49-D9-36-3F-C4-F1-17-BC-11" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.exe" />
<HashCode Code="60-46-A3-6F-82-E4-0A-00-2A-60-83-47-B2-16-F3-24" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.vshost.exe" />
<HashCode Code="76-7B-6F-37-0D-3A-F2-F4-32-D1-70-A5-75-3B-DE-95" />
</Files>
</TestCycle>
</Project>
<Project Name="tfasdtyf">
<TestCycle Number="999">
<Files>
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\DllTest.dll" />
<HashCode Code="0E-C5-03-AD-CC-21-62-49-D9-36-3F-C4-F1-17-BC-11" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.exe" />
<HashCode Code="60-46-A3-6F-82-E4-0A-00-2A-60-83-47-B2-16-F3-24" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.vshost.exe" />
<HashCode Code="76-7B-6F-37-0D-3A-F2-F4-32-D1-70-A5-75-3B-DE-95" />
</Files>
</TestCycle>
</Project>
<Project Name="tfasdtyf">
<TestCycle Number="34534">
<Files>
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\DllTest.dll" />
<HashCode Code="0E-C5-03-AD-CC-21-62-49-D9-36-3F-C4-F1-17-BC-11" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.exe" />
<HashCode Code="60-46-A3-6F-82-E4-0A-00-2A-60-83-47-B2-16-F3-24" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.vshost.exe" />
<HashCode Code="76-7B-6F-37-0D-3A-F2-F4-32-D1-70-A5-75-3B-DE-95" />
</Files>
</TestCycle>
</Project>
<Project Name="Music">
<TestCycle Number="12312">
<Files>
<FileName File="C:\Users\brandonm\Desktop\Stuff\Dubstep\01 A1 Shut Ya Mouth.mp3" />
<HashCode Code="3E-92-80-93-D5-64-19-16-26-8D-39-2A-C7-0B-C8-EB" />
<FileName File="C:\Users\brandonm\Desktop\Stuff\Dubstep\01 A1 Snake Eater.mp3" />
<HashCode Code="8B-DF-19-AE-87-52-64-2E-85-CF-57-4B-85-4D-CC-E9" />
<FileName File="C:\Users\brandonm\Desktop\Stuff\Dubstep\01 A1 Stuck in the System.mp3" />
<HashCode Code="6A-30-A7-53-FF-29-A5-DF-6D-24-DF-41-74-EE-06-4D" />
<FileName File="C:\Users\brandonm\Desktop\Stuff\Dubstep\01 Martin Solveig - Hello (Featuring Dragonette).mp3" />
<HashCode Code="93-90-A3-9C-BE-81-63-03-D7-96-1F-72-E4-ED-2D-32" />
<FileName File="C:\Users\brandonm\Desktop\Stuff\Dubstep\01 Stimming - Funkworm.mp3" />
<HashCode Code="8F-E1-7A-F1-B7-80-C6-2F-DC-34-FD-82-A0-DA-35-5E" />
<FileName File="C:\Users\brandonm\Desktop\Stuff\Dubstep\1. Downlink - Ignition.mp3" />
<HashCode Code="3D-89-B3-C2-73-A6-A0-85-02-C0-B4-F9-C8-09-14-C7" />
<FileName File="C:\Users\brandonm\Desktop\Stuff\Dubstep\02 B1 Psychedelic Runway.mp3" />
<HashCode Code="00-72-5C-CE-25-73-98-31-69-71-68-48-31-A1-A3-5A" />
<FileName File="C:\Users\brandonm\Desktop\Stuff\Dubstep\02 B1 Rapture.mp3" />
<HashCode Code="1E-A6-53-07-10-FD-A3-4C-EF-D6-92-7F-CE-97-88-6E" />
<FileName File="C:\Users\brandonm\Desktop\Stuff\Dubstep\02_Digital-Controller.mp3" />
<HashCode Code="94-E0-CA-5F-2B-D2-56-7B-AF-2E-04-50-58-38-4D-B4" />
<FileName File="C:\Users\brandonm\Desktop\Stuff\Dubstep\2. Downlink - Gamma Ray.mp3" />
<HashCode Code="3C-7A-76-AD-A6-2C-D1-7E-61-24-C0-40-BD-A7-A9-41" />
</Files>
</TestCycle>
</Project>
</Projects>
I currently have another function identical to the one above so one for each listbox the only difference is the file and the testcyle number which determines where in the XML they will retrieve their files and hash codes. They store them in 4 separate arrays, 2 arrays per function. But obviously my function cannot return two arrays so it is currently only return the one.
2D arrays confuse me a lot and im not sure how i would get the information i need out of them when it comes down to the comparing i need to do. Can anyone direct me to a better way of doing this?
I dont want to really make 4 functions like the one above for the each set of filenames and then each set of hashcodes. But i'm still a beginner so maybe that is my best option?

It's better not to duplicate the function. You want to make a single function that can be used in all of your cases here.
As for storing the filenames and hashcodes, .NET has a lot of useful collection classes you can use. For example, you could use a Dictionary<string, string> like this:
Dictionary<string, string> dictionary = new Dictionary<string, string>();
for (int i = 0; i < NumFiles; i++)
{
dictionary.Add(FileNames[i], HashCode[i]);
}
The above code you could put right before your return statement in the function you provided. Then return the dictionary. Of course, you could make the entire function shorter by storing them directly in the dictionary, but I'll leave that for you to decide.
Now, wherever this function is called from, you might need to loop through this dictionary. Here's a way to do that:
foreach (var pair in dictionary)
{
string filename = pair.Key;
string hashcode = pair.Value;
// Do whatever you want with them here
}
No doubt there are other ways to do what you want. I am not completely sure what your overall goal is. You should experiment with other generic collections too, such as List<T>.

If HashCode belongs to a File, why isn't it a sub-element/attribute of it? It would make it way easier to parse.
Since you create the file, I'd create the structure like:
<Project Name="tfasdtyf">
<TestCycle Number="23423">
<Files>
<File Name="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\DllTest.dll" HashCode="0E-C5-03-AD-CC-21-62-49-D9-36-3F-C4-F1-17-BC-11" />
<File Name="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.exe" HashCode="60-46-A3-6F-82-E4-0A-00-2A-60-83-47-B2-16-F3-24" />
<File Name="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.vshost.exe" HashCode="76-7B-6F-37-0D-3A-F2-F4-32-D1-70-A5-75-3B-DE-95" />
</Files>
</TestCycle>
</Project>
Then with some XElement magic, you could use:
public class Project
{
XElement self;
public Project(XElement project)
{
self = project;
}
public TestCycle TestCycle
{
get
{
// If there are more than one TestCycle per project, you may end
// up creating something similar to TestCycle.Files (see TestCycle class below)
XElement testCycle = self.Element("TestCycle");
if(null == testCycle)
self.Add(testCycle = new XElement("TestCycle"));
return new TestCycle(testCycle);
}
}
public string Name
{
get { return return self.GetString("Name", string.Empty, ATTRIBUTE); }
set { self.Set("Name", value, ATTRIBUTE); } // see Set Extension method below
}
public static IEnumerable<Project> Load(string filename)
{
return XElement.Load(filename)).Elements("Project").Select(xp => new Project(xp));
}
}
public class TestCycle
{
XElement self;
public TestCycle(XElement testCycle)
{
self = testCycle;
}
private XElement XFiles
{
get
{
XElement files = self.Element("Files");
if(null == files)
self.Add(files = new XElement("Files"));
return files;
}
}
public IEnumerable<FileHash> Files
{
get
{
return XFiles.Elements("File").Select(xf => new FileHash(xf));
}
}
public int Number
{
get { return self.GetInt("Number", 0, ATTRIBUTE); }
set { self.Set("Number", value, ATTRIBUTE); } // see Set Extension method below
}
public FileHash AddFile(string name, string hashCode)
{
FileHash file = Files.FirstOrDefault(xf => xf.Name == name);
if(null != file)
file.self.Remove(); // replacing (but could throw an exception saying already exists instead)
XElement xFile = new XElement("File");
self.Add(xFile);
file = new FileHash(xFile)
{
Name = name,
HashCode = hashCode
};
return file;
}
}
public class FileHash
{
internal XElement self;
public FileHash(XElement fileHash)
{
self = fileHash;
}
public string Name
{
get { return self.GetString("Name", string.Empty, ATTRIBUTE); }
set { self.Set("Name", value, ATTRIBUTE); } // see Set Extension method below
}
public string HashCode
{
get { return return self.GetString("HashCode", string.Empty, ATTRIBUTE); }
set { self.Set("HashCode", value, ATTRIBUTE); } // see Set Extension method below
}
}
Extension methods:
public static XElementExtensions
{
public const bool ATTRIBUTE = true;
public const bool ELEMENT = false;
public const bool? BOTH = null;
public void Set(this XElement self, string name, object value, bool isAttribute)
{
string sValue = value.ToString();
XElement eValue = self.Element(name);
XAttribute aValue = self.Attribute(name);
if(null != eValue)
eValue.ReplaceWith(new XElement(name, sValue));
else if(null != aValue)
aValue.ReplaceWith(new XAttribute(name, sValue));
else if(isAttribute)
self.Add(new XAttribute(name, sValue));
else
self.Add(new XElement(name, sValue));
}
public string GetString(this XElement self, string name, string #default, bool? isAttribute)
{
XAttribute aValue = self.Attribute(name);
XElement eValue = self.Element(name);
if(null == isAttribute) // try both
{
if(null != aValue) return (string)aValue;
if(null != eValue) return (string)eValue;
return #default;
}
if(isAttribute && null != aValue)
return (string)aValue;
if(!isAttribute && null != eValue)
return (string)eValue);
return #default;
}
public int GetInt(this XElement self, string name, int #default, bool? isAttribute)
{
return Convert
.ToInt32(GetString(self, name, null, isAttribute) ?? #default.ToString());
}
}
Then you can use the code like:
Project[] projects = Project.Load(filename).ToArray();
foreach(Project project in projects)
{
Console.WriteLine("Project: " + project.Name);
Console.WriteLine("TestCycle: " + project.TestCycle.Number.ToString());
Console.WriteLine("Files:");
foreach(FileHash file in project.TestCycle.Files)
Console.WriteLine(string.Format(" Name: {0}, HashCode: {1}", file.Name, file.HashCode));
}
Or for your application, to compare two xml files:
var fileA = Project.Load(fileAname);
var fileB = Project.Load(fileBname);
I'm not quite sure how you mean, all the files, but I'll attempt it.
File[] filesA = fileA.SelectMany(project => project.TestCycle.Files).ToArray();
File[] filesB = fileB.SelectMany(project => project.TestCycle.Files).ToArray();
Using these Extension Methods:
public static IEnumerable<TSource> Except<TSource>
(
this IEnumerable<TSource> first,
IEnumerable<TSource> second,
Func<TSource, TSource, bool> comparer
)
{
return first.Except(second, new LambdaComparer<TSource>(comparer));
}
public static IEnumerable<TSource> Intersect<TSource>
(
this IEnumerable<TSource> first,
IEnumerable<TSource> second,
Func<TSource, TSource, bool> comparer
)
{
return first.Intersect(second, new LambdaComparer<TSource>(comparer));
}
And the LambdaComparer class:
public class LambdaComparer<T> : IEqualityComparer<T>
{
private readonly Func<T, T, bool> equals;
private readonly Func<T, int> getHashCode;
public LambdaComparer(Func<T, T, bool> lambdaComparer) :
this(lambdaComparer, o => o.GetHashCode())
{
}
public LambdaComparer(Func<T, T, bool> lambdaComparer, Func<T, int> lambdaHash)
{
if (lambdaComparer == null)
throw new ArgumentNullException("lambdaComparer");
if (lambdaHash == null)
throw new ArgumentNullException("lambdaHash");
equals = lambdaComparer;
getHashCode = lambdaHash;
}
public bool Equals(T x, T y)
{
return equals(x, y);
}
public int GetHashCode(T obj)
{
return getHashCode(obj);
}
}
File[] filesInA_butNotInB = filesA.Except(filesB, (a,b) => a.Name == b.Name).ToArray();
File[] filesInBoth = filesA.Intersect(filesB, (a,b) => a.Name == b.Name).ToArray();
File[] filesInBoth_butDifferentHash = FilesA.Intersect(filesB, (a,b) => a.Name == b.Name && a.HashCode != b.HashCode).ToArray();
That should "get you started" ...
PS: I wrote (most of) this all by hand, not via compiler so there are probably some typo's that the compiler will catch.
PS: Also, all the .ToArray()'s are just because File[] is easier to read than IEnumerable<File>. It is easier to read but about the same typing either way.
PSS: I hope you find this useful. I love the Xml Linq way of handling things, so it was fun writing this out.

C++/CLI XML creation methods Dll in a WPF form

Update: I have modified the post as per comments.
This is going to be a slightly long post i apologize for that, but i want people to understand what im trying to do before shooting it down. I've asked a few question previously about creating methods to create XMLs in C++/CLI and I want to continue using them.
Recently i started testing out C# and WPF and im really enjoying the creativity and freedom it offers for visual effects. I started converting the functions of an application i am currently working on into a DLL mostly so i don't have to redo the work I have already done and because i want to learn and gain some experience in writing DLL's and using interop.
Every function so far has only had a single input or output. However my final two functions (Which take a list of filenames and the hash of the file its self and for each file and hash saves it to an xml file) aren't working so well for me. Im getting output but not in the form i want it so obviously my logic is flawed but im not sure how to correct it.
The functions are very similar the only difference is the one creates a brand new xml while the second updates an existing xml. They both worked perfectly before as straight C++/CLI functions however now that i need to use them in C# i have to put them in iterations so they work for each of the files and their hashes displayed in the lists.
Below is one of the functions in the Dll where i have now replaced the previous hard-coded variables which would have been listBox2->Items[x]->ToString() as varibales such as CurrentFile which are now defined in the .cs.
public: void XMLUpdate(String^ Location, int NumberItems, String^ ProjectName,
String^ ProjectTC, String^ CurrentFile, String^ CurrentHash)
{
try
{
XmlDocument^ XmlDoc = gcnew XmlDocument();
XmlDoc->Load(Location);
XmlElement^ NewProject = XmlDoc->CreateElement("Project");
NewProject->SetAttribute("Name", ProjectName);
XmlDoc->DocumentElement->AppendChild(NewProject);
XmlElement^ NewTestCycle = XmlDoc->CreateElement("TestCycle");
NewTestCycle->SetAttribute("Number", ProjectTC);
NewProject->AppendChild(NewTestCycle);
XmlElement^ NewFile = XmlDoc->CreateElement("Files");
NewTestCycle->AppendChild(NewFile);
for (int x = 0; x < NumberItems; ++x)
{
String^ FileName = CurrentFile;
String^ Hash = CurrentHash;
XmlElement^ NewFileName = XmlDoc->CreateElement("FileName");
NewFileName->SetAttribute("File", FileName);
NewFile->AppendChild(NewFileName);
XmlElement^ NewHashCode = XmlDoc->CreateElement("HashCode");
NewHashCode->SetAttribute("Code", Hash);
NewFile->AppendChild(NewHashCode);
}
XmlDoc->Save(Location);
return;
}
catch(Exception^)
{
return;
}
}
Here is the call for the method from the dll in my WPF form:
private void button2_Click(object sender, RoutedEventArgs e)
{
DllTest.Funtions Functions = new DllTest.Funtions();
String Name = textBox1.Text;
String TC = textBox2.Text;
String Location = "C:\\Users\\brandonm\\Desktop\\Backup\\XML\\test1.xml";
int Number = listBox2.Items.Count;
for (int x = 0; x < listBox2.Items.Count; ++x)
{
Functions.XMLUpdate(Location, Number, TC, Name, listBox2.Items[x].ToString(),
listBox3.Items[x].ToString());
}
}
Output is only taking the last item in the list and duplicating it by the number in the list in this case the list had 3 filenames and the second list had 3 hashes here is an example:
<?xml version="1.0" encoding="utf-8"?>
<Project Name="New">
<TestCycle Number="1">
<Files>
<FileName
File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.vshost.exe" />
<HashCode
Code="76-7B-6F-37-0D-3A-F2-F4-32-D1-70-A5-75-3B-DE-95" />
<FileName
File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.vshost.exe" />
<HashCode
Code="76-7B-6F-37-0D-3A-F2-F4-32-D1-70-A5-75-3B-DE-95" />
<FileName
File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.vshost.exe" />
<HashCode
Code="76-7B-6F-37-0D-3A-F2-F4-32-D1-70-A5-75-3B-DE-95" />
</Files>
</TestCycle>
</Project>
</Project>
So here is the second function that updates an exisitng XML and gives me completely different output, still incorrect, from the output in the new function.
public: void XMLUpdate(String^ Location, int NumberItems, String^ ProjectName,
String^ ProjectTC, String^ CurrentFile, String^ CurrentHash)
{
try
{
XmlDocument^ XmlDoc = gcnew XmlDocument();
XmlDoc->Load(Location);
XmlElement^ NewProject = XmlDoc->CreateElement("Project");
NewProject->SetAttribute("Name", ProjectName);
XmlDoc->DocumentElement->AppendChild(NewProject);
XmlElement^ NewTestCycle = XmlDoc->CreateElement("TestCycle");
NewTestCycle->SetAttribute("Number", ProjectTC);
NewProject->AppendChild(NewTestCycle);
XmlElement^ NewFile = XmlDoc->CreateElement("Files");
NewTestCycle->AppendChild(NewFile);
for (int x = 0; x < NumberItems; ++x)
{
String^ FileName = CurrentFile;
String^ Hash = CurrentHash;
XmlElement^ NewFileName = XmlDoc->CreateElement("FileName");
NewFileName->SetAttribute("File", FileName);
NewFile->AppendChild(NewFileName);
XmlElement^ NewHashCode = XmlDoc->CreateElement("HashCode");
NewHashCode->SetAttribute("Code", Hash);
NewFile->AppendChild(NewHashCode);
}
XmlDoc->Save(Location);
return;
}
catch(Exception^)
{
return;
}
}
The method call:
private void button4_Click(object sender, RoutedEventArgs e)
{
DllTest.Funtions Functions = new DllTest.Funtions();
String Name = textBox1.Text;
String TC = textBox2.Text;
String path = "C:\\Users\\brandonm\\Desktop\\Backup\\XML\\test1.xml";
int Number = listBox2.Items.Count;
for (int x = 0; x < listBox2.Items.Count; ++x)
{
Functions.XMLNew(path, Name, TC, Number, listBox2.Items[x].ToString(),
listBox3.Items[x].ToString());
}
}
the output for this one which is closer to what i need since it using all of the items in the list but its duplicating them in every element i only want a single new element with the new files and their hashes.
<?xml version="1.0" encoding="utf-8"?>
<Project Name="New">
<TestCycle Number="1">
<Files>
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.vshost.exe" />
<HashCode Code="76-7B-6F-37-0D-3A-F2-F4-32-D1-70-A5-75-3B-DE-95" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.vshost.exe" />
<HashCode Code="76-7B-6F-37-0D-3A-F2-F4-32-D1-70-A5-75-3B-DE-95" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.vshost.exe" />
<HashCode Code="76-7B-6F-37-0D-3A-F2-F4-32-D1-70-A5-75-3B-DE-95" />
</Files>
</TestCycle>
</Project>
<Project Name="2">
<TestCycle Number="New">
<Files>
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\DllTest.dll" />
<HashCode Code="0E-C2-B1-A4-3C-D8-C0-51-96-0F-FF-19-BC-3A-CE-AC" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\DllTest.dll" />
<HashCode Code="0E-C2-B1-A4-3C-D8-C0-51-96-0F-FF-19-BC-3A-CE-AC" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\DllTest.dll" />
<HashCode Code="0E-C2-B1-A4-3C-D8-C0-51-96-0F-FF-19-BC-3A-CE-AC" />
</Files>
</TestCycle>
</Project>
<Project Name="2">
<TestCycle Number="New">
<Files>
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.exe" />
<HashCode Code="C0-7C-51-C2-92-70-1B-11-E0-26-6D-D5-B8-79-12-0D" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.exe" />
<HashCode Code="C0-7C-51-C2-92-70-1B-11-E0-26-6D-D5-B8-79-12-0D" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.exe" />
<HashCode Code="C0-7C-51-C2-92-70-1B-11-E0-26-6D-D5-B8-79-12-0D" />
</Files>
</TestCycle>
</Project>
<Project Name="2">
<TestCycle Number="New">
<Files>
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.vshost.exe" />
<HashCode Code="76-7B-6F-37-0D-3A-F2-F4-32-D1-70-A5-75-3B-DE-95" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.vshost.exe" />
<HashCode Code="76-7B-6F-37-0D-3A-F2-F4-32-D1-70-A5-75-3B-DE-95" />
<FileName File="C:\Users\brandonm\Documents\Visual Studio 2008\Projects\WpfDllTest\WpfDllTest\bin\x86\Release\WpfDllTest.vshost.exe" />
<HashCode Code="76-7B-6F-37-0D-3A-F2-F4-32-D1-70-A5-75-3B-DE-95" />
</Files>
</TestCycle>
</Project>
</Project>
So now you can see the problem i have loops within loops causing output that repeats its self. I can post an example of my output if you need.
But for the life of me i cannot get around it, i have tried splitting up the functions in to parts but i get errors trying to do that.
Can anyone see a way around this? I only want to completely rewrite the methods in c# if its my only alternative since i want all the main functions in the dll. Please dont bash me for my lack of knowledge im still learning and testing alot of things for the first time.
Thanks